利用新穎式塑膠光纖建構光纖有線電視/光纖微波傳輸系統之研究與應用

Studies and Applications of Using Novel Plastic Optical Fiber to Setup Fiber Optical CATV / Radio-over-Fiber Transport Systems

蘇恒生(Heng-Sheng Su)

指導教授 ： 呂海涵

國立臺北科技大學/電資學院/光電工程系研究所/博士(2012年)

摘要

由於光纖具有低損耗、頻寬大、速度快、抗電磁波干擾等特性，以至於被廣泛建構運用於通訊傳輸系統中。對於傳輸介質來說，單模玻璃光纖 (SMF； single-mode fiber) 提供比塑膠光纖 (POF；plastic optical fiber) 更好、更多的性能，適合運用於光纖骨幹網路及擷取網路。然而，光纖通訊系統中對於最後一哩 (last mile) 終端用戶運用尚未明確定義。於終端用戶運用上，建立一個符合經濟效益且可行的技術架構是一項重大的挑戰。
近年來，一些特性好且成本低的塑膠光纖已經被開發出來，例如：氟化漸變式折射率塑膠光纖 (PF GI-POF；perfluorinated graded-index plastic optical fiber) 。在本論文中，我們提出幾種方法並驗證使用PF GI-POF於光纖傳輸系統的終端用戶運用擷取網路上。PF GI-POF對於建構光纖傳輸系統的終端用戶運用上，亦是可考慮的候選方式之一。
此外，我們分別提出二個不同的光源產生方式，並且證明是可符合運用於光纖到X (FTTX；fiber-to-the-X) 及光纖微波 (ROF；radio over fiber) 的傳輸系統運用中。一個是利用寬頻帶自發性放大幅射 (ASE；amplified spontaneous emission) 為基礎的光源運用於FTTX/ROF光纖傳輸系統；另一個是結合使用多波段光載波器搭配新型的光信號雜訊比 (OSNR；optical signal to noise ratio) 增強光路機制運用於ROF傳輸系統。

關鍵字

光纖到X ； 光信號雜訊比 ； 氟化漸變式折射率塑膠光纖 ； 光纖微波

並列摘要

Optical fiber with characteristics like low attenuation, high bandwidth, high speed, and electromagnetic noise interference (EMI) free is widely used in constructing communication transport systems. As a communication medium, glass single-mode fiber (SMF) offers much better performances than plastic optical fiber (POF). Also, glass single-mode fiber (SMF) can apply in backbone and access network. Nevertheless, fiber optical communication systems for last mile end user applications have not yet addressed. Building a feasible and an economical technique structure to fit in with last mile end user applications is a big challenge.
In recent years, some new POFs, such as perfluorinated graded-index plastic optical fiber (PF GI-POF), have been developed with better performance and low cost. In this dissertation, we present several ways to verify optical transport systems access network with build-in PF GI-POF. PF GI-POF access network can be a candidate for last mile end user applications.
Furthermore, we proposed two light sources and demonstrated that they can conform to application of fiber-to-the-X (FTTX) and radio over fiber (ROF) transport system, respectively. One light source based on a broadband amplified spontaneous emission (ASE) is for FTTX/ROF transport system; the other light source combined an economical multi-band optical carrier generator with a novel optical signal to noise ratio (OSNR) enhancement circuit is for radio over fiber transport systems.

並列關鍵字

fiber-to-the-X ； optical signal to noise ratio ； perfluorinated graded-index plastic optical fiber ； radio over fiber

參考文獻

[1] Anthony Ng'oma, “Radio-over-fibre Technology for Broadband Wireless Communication Systems,” Technische Universiteit Eindhoven, 2005.

[2] K. Thyagarajan and A. Ghatak, “Fiber Optic Essentials,” John Wiley & Sons, Inc, 2007.

[4] H. H. Lu, C. H. Chang, P C. Peng, H. S. Su, and H. W. Hu, “A radio-over-GI-POF transport system,” J. Lightwave. Technol., vol. 28, pp. 1917-1921, 2010.

[5] J. C. Palais, “Fiber Optic Communications,” 5th ed., Prentice-Hall, pp. 25-27, 2005.

[7] W. Y. Lin, H. H. Lu, H. C. Peng, and C. H. Huang, “Direct-detection full-duplex radio-over-fiber transport systems”, Opt. Lett., vol. 34, pp. 3319-3321, Nov. 2009.